Extended Hildebrand solubility approach applied to sulphadiazine in aqueous binary mixtures of Carbitol® and N-methyl-2-pyrrolidone at 313.15 K Extended Hildebrand solubility approach applied to sulphadiazine in aqueous binary mixtures of Carbitol® and N-methyl-2-pyrrolidone at 313.15 K April 28, 2021 Irmis P. Osorio Volume 60, Issue 2, March-April 2022, Page 165-176.